TAM model Thesis Example | Topics and Well Written Essays - 4750 words

tam warning - Thesis ExampleThe concept aims to explain the aspects that facilitate the knowledge of the level of acceptance that can be shown by the user for any specific technology. There are basically four types of technology acceptance models that construct evolved with the passage of the years tam-o-shanter TAM is the most commonly applied model for evaluating the level of acceptance and usage by a user. Venkatesh stated that TAM was initially devised from Theory of Reasoned Action (TRA) which was proposed by Ajzen and Fishbein in 1975 86. TAM is mainly based on two aspects that are directed towards evaluating the intention of a user to use a certain system or technology perceived ease of use and perceived receipts. Advantage Venkatesh further explained the TAM model and stated that there exists a simple relation between these two factors 86. Perceived ease of usage ordain be influenced by perceived usefulness since an easier technology will prove to be more useful for the user. He defined these two main aspects and stated the following definitions Perceived Ease of phthisis It is the perception of a technology from the perspective of the user. For example, the perception will measure the easiness of the functions that the system or technology has to offer this easiness will case in littleer efforts to use the technology. Perceived Usefulness It is the degree of benefits that are perceived to be attained from the usage of any technology. For example, a user will evaluate the e-government service and make a perceptiwon about the advantages that can be attained by him. The following figure describes the TAM model Figure TAM Model 85 Porter and Donthu stated that TAM can be adopted when research costs are required to be minimal but potent results need to be attained 92. It explains greater degree of variance when the users attitude is required to be investigated. Disadvantage This model was devoid of reflecting the demographic differences among the users and tried to measure the level of acceptance while assuming constant profiles related to gender, age etc. Limitations This model failed to address some of the perceptions of barriers of usage of estimator technology 92. TAM 2 TAM 2 was proposed by Venkatesh and Davis (2000) to overcome the limitations in the previous model of TAM 85. Chuttur stated that their efforts (to propose a fresh model in place of the existing one) were initiated to address the limitations that were being witnessed in TAM regarding the explanation of how a user perceives something as useful or less appealing 85. In trying to make the model more comprehensive, some new variables were proposed to attain effective reasoning regarding the preference of any system or technology. Chuttur also stated that in order to test the effectiveness of the newly proposed model, Venkatesh and Davis conducted a survey in which the participants were asked to provide their feedback regarding the usage of four systems two o f them were military volunteer while the other two were mandatory 85. The following model was proposed for extending TAM and conducting the survey Figure TAM 2 attributes 85 The survey concluded that the model provided tolerable results for mandatory, as well as voluntary technology and systems. However, it was also revealed that subjective norm did not play a role in